全部

1·Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment.

石油由原油和天然气组成，它们似乎来源于海洋沉积物中的有机物质。

2·At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils.

在炼油厂，从地下提取的原油被分离成天然气、汽油、煤油和各种其他类型的油。

3·Though BP has sought to do just that as it captures crude from its breached well, some of the gas has escaped containment efforts and has wound up in the water.

虽然在提取原油时，BP公司力求将油井漏出的甲烷收集或烧掉，但还是有些气体泄漏逃离，融入到水中。

4·Crude oil and natural gas production account for nearly half of GDP.

原油和天然气的生产占了GDP的近半数。

5·But while easing prices for crude and other commodities have allowed retail gas prices to come down almost 10 percent from July highs, food prices have been more stubborn.

尽管原油和其他日用品价格的停止增长使得汽油的零售价格从7月的最高点到现在下降了10%，食品价格仍然高企不下。

6·Nigeria, the fifth-biggest source of oil imports for the U.S., holds reserves of more than 36 billion barrels of crude and 187 trillion cubic feet of gas.

尼日利亚美国第五大原油进口来源国拥有超过360亿桶原油储备和1亿8千7百万立方英尺的天然气储备。

7·Moreover, compared to natural gas and crude oil, coal is much cheaper per ton of CO2 released.

再者，与天然气和原油相比，燃烧煤炭产生CO2的吨均价格低廉些。

8·Moreover, because gas is frequently encountered in association with oil, the production, refinement, transportation, and storage of crude oil is also a source of methane emissions.

此外，由于天然气常与石油混在一起，原油生产、提炼、运输和储存也是一个甲烷排放来源。

9·Putin joined the team of scientists studying gas hydrates and natural seepage of crude oil on the bottom of Baikal on Saturday.

在周六与普京随行的是一队科学家，他们负责研究天然气水合物，以及贝加尔湖湖底原油的自然渗漏问题。

10·The oil-equivalent metric represents all forms of energy consumed, including crude oil, nuclear power, coal, natural gas and renewables sources such as hydropower.

油当量代表消费的所有形式的能源，其中包括原油、核电、煤炭、天然气以及水力发电等再生资源。